i have an 93 ls400 and i could start the thing when the temp rose above 70 degrees, i know it sounds dumb but its true i attempted to take the air intake chamber off and clean it and the throttle body to my surprise it wasnt that dirty and certainly not clogged, but put it bak togethter and she started right up but now not even that will do it any suggestions?? thanx
starting problem 93 ls400
Nov 05, 2004
1 Replies
Have you checked the high bypass air intake resonator port? Sometimes the clamps on each side of this will loosen alowing a air leak -- this results in inaccurate info to the resonator regulator port butterfly valve. This affects cold starting or very hot starting only.
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